Group Resources

Group Leadership

Robert Motl
Wacker Neuson Corp

Vice Chair
Ben Wiese

AEM Staff Contact

Nathan (Nate) Burton
AEM Technical & Safety Services Manager

Product Focus

Manufacturers of concrete power trowels and their major component suppliers meet annually in this AEM bureau -- the Troweling Machine Manufacturers Bureau (TMMB). Power Trowels are used to finish freshly poured concrete surfaces such as floors, while the concrete is still 'green', that is, still soft on the surface and not yet completely cured and dry.


The bureau's primary focus is on technical and safety issues affecting power trowels, including Operator Safety, European CE Mark compliance, domestic and international standards, and global regulations.

Bureau Activities

The group maintains a power trowel operator safety manual, conducted a safety decal exchange, and works on development of a set of voluntary design guidelines.

Engine Emissions Regulatory Agency Links

U.S. Environmental Protection Agency (EPA)
California Air Resources Board (CARB)